Hi, On 6/10/2023 12:12 AM, Alexei Starovoitov wrote: > On Thu, Jun 8, 2023 at 11:32 PM Hou Tao <houtao@xxxxxxxxxxxxxxx> wrote: >>>> + --producers=8 --prod-affinity=0-7 "$@")" >>> -a -p 8 should just work. >>> No need to pick specific cpus. >> No. For VM with only 8 CPUs, the affinity of the first producer will be >> CPU 1 and the affinity of the last producer will be CPU 8, so the >> benchmark will fail to run. But I think I can fix it, so the affinity of >> the last producer will be 0 instead. > Right. Noticed that too. > That should probably be a separate patch to fix this cpu assignment > issue in bench for all benchs. > > Andrii, > when you wrote it did you really mean to start assigning cpus from 1 > or that was just an oversight? I think the reason is that the CPU affinity of the consumer is CPU 0.